This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A374794 #9 Jul 22 2024 05:49:54 %S A374794 1,1,10,216,8181,489753,43073059,5251140144,847811871333, %T A374794 175006259417547,44939475107574752,14046429669829943012, %U A374794 5249989348656458769520,2312011774544840687484876,1184766852578716585055014620,698927709348312453031204116720 %N A374794 Number of deco polyominoes of height 2n and vertical height n. %H A374794 Alois P. Heinz, <a href="/A374794/b374794.txt">Table of n, a(n) for n = 0..232</a> %H A374794 Elena Barcucci, Sara Brunetti and Francesco Del Ristoro, <a href="http://www.numdam.org/item?id=ITA_2000__34_1_1_0">Succession rules and deco polyominoes</a>, Theoret. Informatics Appl., 34, 2000, 1-14. %H A374794 Elena Barcucci, Alberto Del Lungo, and Renzo Pinzani, <a href="https://doi.org/10.1016/0304-3975(95)00199-9">"Deco" polyominoes, permutations and random generation</a>, Theoretical Computer Science, 159, 1996, 29-42. %F A374794 a(n) = A121692(2n,n). %Y A374794 Cf. A121692. %K A374794 nonn %O A374794 0,3 %A A374794 _Alois P. Heinz_, Jul 20 2024